HART’s Substack

Investor Due Diligence Report

substackEducation

HART is a group of highly qualified UK doctors, scientists, economists, psychologists and other academic experts, reporting on various aspects on public health, especially in relation to the covid response.

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Key Metrics

Subscribers

210 paid

Verified

Weekly Growth

N/A

Revenue Analysis

Pricing

$8/mo

$80/yr annual option

Est. Monthly Revenue

$1K

210 paid subs

$1K/mo – $1K/mo(±0%)

Engagement

Avg Comments/Post

11.0

Avg Likes/Post

42.0

Engagement Rate

1.77%

(comments + likes) / subscribers

Quality & Publishing

Audience Quality Score

61Fair

0100

Publishing Pace

~2x per week

2.0 posts/week

Score based on available components only.

Component	Score	Weight

Competitive Landscape (Education)

Newsletter	Subscribers	Weekly Growth	Price	Platform
Prof G Markets	407K	+0.1%	$20/mo	substack
Minding the Gap	24K	N/A	Free	substack
The Data Hustle	23K	N/A	Free	substack
Tech in Ed	22K	N/A	Free	substack

Revenue Trajectory

Estimated monthly revenue over time

Month	Subscribers	Est. Revenue	Change
Mar 2026	3K	$1,335.6	—

Revenue tracking starts with your first month of data. More data points will appear as snapshots accumulate.

Risk Assessment

Key risk factors for due diligence

High

Platform Dependency

Hosted on substack subdomain

Medium

Key Person

Single-author publication — key-person dependency

Low

Audience Concentration

Consistent engagement across posts

Low

Revenue Model

Active paid subscription tier

Monetization Readiness

Monetization status

Subscriber threshold

3K subscribers — above the 1K category median for first paid tier

Has paid tier

Active paid subscription offering

Peer monetization

100% of 92 similar-size peers in Education have paid tiers

Pricing position

$8/mo vs $14.23/mo category average (486 newsletters)

Pricing History

Date	Monthly	Annual
Mar 2026	$8	$80

Data Quality

Report Data QualityFull - All metrics available

Subscriber Confidenceverified

Disclaimer: This report is generated automatically based on publicly available data and proprietary estimation models. Estimated subscriber counts are derived from engagement patterns and should be verified through direct disclosure. Revenue estimates are based on known pricing and estimated paid subscriber counts. This report is for informational purposes only and should not be the sole basis for investment decisions.